| TOP 40 DATA CENTER CONSTRUCTION FIRMS | ||
| Rank | Firm | 2015 Revenue |
| 1 | Whiting-Turner Contracting Co., The | $1,083,554,383 |
| 2 | Holder Construction Co. | $730,000,000 |
| 3 | DPR Construction | $486,876,000 |
| 4 | Turner Construction Co. | $474,216,912 |
| 5 | Structure Tone | $410,600,000 |
| 6 | JE Dunn Construction | $405,159,678 |
| 7 | AECOM | $294,660,000 |
| 8 | Fortis Construction | $271,709,620 |
| 9 | Fluor Corp. | $238,760,000 |
| 10 | Gilbane Building Co. | $227,161,000 |
| 11 | HITT Contracting | $210,300,000 |
| 12 | Hoffman Construction | $183,604,980 |
| 13 | Balfour Beatty US | $170,739,135 |
| 14 | Hensel Phelps | $161,230,000 |
| 15 | Beck Group, The | $123,490,657 |
| 16 | Mortenson Construction | $113,633,000 |
| 17 | Skanska USA | $91,974,238 |
| 18 | Clune Construction Co. | $74,943,315 |
| 19 | BlueScope Construction | $43,552,708 |
| 20 | Brasfield & Gorrie | $22,893,101 |
| 21 | Yates Companies, The | $21,000,000 |
| 22 | Shook Construction Co. | $14,834,404 |
| 23 | Weis Builders | $12,335,000 |
| 24 | PCL Construction Enterprises | $11,261,124 |
| 25 | Pepper Construction Group | $11,150,000 |
| 26 | Walsh Group, The | $10,225,716 |
| 27 | Power Construction Co. | $9,500,000 |
| 28 | Jacobs | $7,160,000 |
| 29 | IMC Construction | $5,000,000 |
| 30 | Manhattan Construction Group | $4,074,000 |
| 31 | Adolfson & Peterson Construction | $3,340,000 |
| 32 | Hill International | $3,000,000 |
| 33 | Coakley & Williams Construction | $2,160,881 |
| 34 | Cumming | $2,054,000 |
| 35 | W.E. O’Neil Construction Co. | $1,510,890 |
| 36 | JLL | $972,632 |
| 37 | WSP | Parsons Brinckerhoff | $920,000 |
| 38 | Ryan Companies US | $754,616 |
| 39 | Lendlease | $598,000 |
| 40 | KCI Technologies | $400,000 |
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